【摘要】 采用动光弹实验的方法,对应力波在不同界面结构中的传播规律进行了研究,分析了三种不同界面情况下没有刻槽、刻槽以及完全割断的情况,应力波的传播速度,并进行了比较。结果证实了完全割断时对应力波的传播有明显的阻隔作用。实验表明,钻爆法施工应充分重视爆破应力波对衬砌的影响,可作为隧道设计的依据。更多还原

【Abstract】 The effect of different interface on the stress wave propagation in structure was investigated by dynamic photo elastic method.The speed of wave propagation under different instances was also analyzed and compared.The experimental results prove that if the model is chopped up,the stress wave will be held up obviously.It is revealed by the experiment that the significant impact induced by the blasting under conditional exploitation can be considered as the proofs of tunnel design.更多还原